Brazed single-pass plate heat exchanger SAFEPLATE LB31SP-90-1" (connections: 4 GZ nozzles) 0203-0378

Safety and efficiency in a compact housing

The SAFEPLATE series brazed plate heat exchanger is a solution designed for demanding heating and cooling installations where reliability and heat exchange safety are key. The LB31SP-90-1" model features a unique double-wall system design, which not only prevents the mixing of working fluids in the event of a failure but also allows for their visual detection thanks to a special gap in the side surface of the device. This measure eliminates the risk of unnoticed leaks between circuits, which is particularly important in installations using expensive or harmful media. The entire unit is made of stainless steel, guaranteeing high corrosion resistance and long-term operation even in difficult environmental conditions.

Application and key design advantages

The device is ideal for systems requiring high efficiency with relatively small dimensions. Thanks to the optimal shaping of the flow channels, the exchanger achieves low flow resistance while maintaining high heat exchange efficiency. This design also effectively prevents the accumulation of contaminants inside the channels, resulting in less maintenance and a longer installation lifespan. The vacuum brazing process ensures a permanent bond of the plates, which translates to the tightness of the construction and resistance to extreme changes in pressure and temperature.

In practical operation, the device handles extreme thermal conditions, working stably at temperatures up to 230 °C. Such high thermal resistance makes it suitable for industrial heating circuits where standard solutions might fail. At the same time, pressure resistance up to 30 bar allows for safe installation in high hydraulic load installations without the risk of damaging seals or plates. The connections on both sides (primary and secondary) are made as a 1 inch (25 mm) male thread, which significantly facilitates integration with typical fittings without the need for additional adapters. Compact dimensions – 286 mm in height and 123 mm in width – allow the device to fit even in tight technical cabinets, while offering high thermal power. The simple single-pass design further accelerates installation and any potential service disassembly.

Operating conditions and installation possibilities

The device is characterized by high resistance to changes in operating parameters, confirming its ability to work in difficult thermodynamic conditions. Thanks to the use of stainless steel and copper brazing technology, the exchanger maintains tightness even at a maximum working pressure of 30 bar and temperatures up to 230 °C. The external dimensions (286 x 123 mm) allow for installation in spaces with limited room, and the possibility of fitting dedicated insulation cladding further increases operational safety by reducing heat loss and providing protection against burns.

The single-pass design with GZ (1 inch) threaded connections on both sides simplifies hydraulic system design and reduces the number of required intermediate elements. Optimal media flow minimizes the risk of contaminant deposition, which is crucial for maintaining efficiency throughout the installation's life cycle. This is a proven technology from the manufacturer HEXONIC, which combines compactness with high heat exchange efficiency, perfectly fitting the needs of modern heating and cooling systems.